Showing posts with label sci-tech news. Show all posts
Showing posts with label sci-tech news. Show all posts

Sunday, 27 December 2015

TOP 6 SPACE PHOTOGRAPHS OF 2015 TAKEN BY NASA

Most Memorable Space Photographs Of Year 2015. Photographs taken by NASA On Different Days Across Whole Year.

In 2015 the world saw many changes and most memorable moments in history from cricket world cup to Nepal earthquake. Every field witnessed some most interesting and memorable moments.Same thing Astronomy witness as NASA took few pictures of giant stars blasting and fading away into gases. Below are top 6 pictures of Astronomy in 2015.Lets take a round up and see most interesting pictures of stars who are million light years away from us.Taken by Hubble telescope.

1. WOLF RAYET STAR 

















Star WR-124 which is surrounded by nebula m-167. Nebula m-167 is no more than 10,000 years old.Which is baby in astronomical terms. Still it makes a beautiful sight with amazing flare in it.
Most burning stars in our universe might be the most shortest lived.Wolf Rayet in its last stages bright up and gets hot to an extreme level with million times more than our lovely sun.It is located in constellation saggitarius. This picture was taken by Hubble space telescope.Dynamics of this star are different than our sun its mass is  around nine times more and radius ten times of our sun.They burn more brighter as they get old.As they run out of elements there heat and radiation increases which result in powerful winds which causes loss of mass.When there core collapse they explode out in form of supernova.Well this star have still some life left.

2. VEIL NEBULA 












Known as Veil Nebula is a debris one of the best supernova remnants we know till now.This picture with details was released by NASA on 24sep 2015.It shows a small section of remains of star around 8000 years ago.The entire nebula is expanded over 110 light years covering the size of around six full moons.It is located 2100 light years ago from Earth in constellation cygnus,the swan.It shows gaseous remains of star which was 20 times more bigger than our sun.Nebula is along the large bubble of less dense gad which was blown away prior to its self detonation.

3. MESSIER 96 

















It's a spiral galaxy located only 35 million light years away from us.Its dynamics are similar to milky way galaxy it have same mass and size.It was first discovered in 1781 by Pierre Mechain. The galaxy looks like a giant maelstrom of glowing gas.Gases and dust around it is unevenly spread throughout of its spiral arms and even with its core not at galactic center. This could have been because of the gravitational pull by other galaxies nearby.This picture was taken by my favorite Hubble telescope and was released by NASA on sep 4 2015.

4. PLANETARY NEBULA 

















Generally known as planetary Nebula and Astronomically it is known as pk329-02.2. Some times it is often referred as Menzel 2 named after astronomer. It is located in constellation of Norma in southern sky.When stars around sun comes to their last stages they shed their outer layers into space which looks like glowing gaseous clouds.In this picture star causes this blue gas with two stars in center.It was discovered that stars at upper right corner is the central star while the second one is physical companion of star.In next few thousand years ago these gases will fade away in darkness of universe.It is its good bye sign before it reaches in its last moment of  life and becomes white dwarf.It was last updated by NASA on oct 9 2015.

5. Celestial Fireworks 














It is picture of  young stars flaring to life in blue color while nebula in between them.It was released to mark 25th anniversary of Hubble in space.It is basically a cluster which is expands over 6 and 13 light years.Giant star cluster is approx 2 million years old and have some of the galaxies hottest and brightest even massive stars.The red little tiny dots in landscape represent new born stars still wrapped up in gas and dust cocoons and are only 1 or 2 million years old.Star cluster which is in center of image shows red shades which represent are hydrogen and bluish green region is predominantly oxygen.

6. A LITTLE GEM

















Well NASA call it a little gem it is basically a planetary nebula which is called NGC 6818 in terms of astronomy.It resides far from us in  constellation of Sagittarius which is around 6000 light years from us.Its body spans over half light year across.When stars like sun enters in their last phase they shed their outer layers into space which causes glowing gaseous clouds.It can have very complex shapes as well.It shows a bright and enclosed central bubble which is surrounded by larger diffuse cloud.Well scientists of NASA believe that stellar winds from central star propels is the out flowing material which sculpts shape of this star.Fast winds moves into slower clouds it created bright blowout at outer layer of bubble. It was first taken in 1997 but now it was released again.

These were most interesting or memorable pictures of 2015 taken by Hubble telescope and year 2015 marked Hubble's 25th anniversary. Hubble will last around 2030 to 2040 in space with its successor to launch in 2018.Hope you guys will like my article let me know by commenting below/

Thursday, 3 December 2015

NASA RELEASED SELECTIVE SHOTS OF SOHO'S 20 YEARS IN SPACE

NASA RELEASED SOHO'S TWENTY YEARS IN SPACE HIGHLIGHT VIDEO



Without a  doubt we use to listen from our parents to not look directly in sun as it can be harmful, but I think guys at NASA didn't took that advice seriously. Exactly 20 years ago today, they launched SOLAR AND HELIOSPHERIC OBSERVATORY  to do just that.
In that 12 years time, the orbiting spacecraft and its 12 sun-spotting instruments have provided NASA with a huge amount of information about our dear SUN.

      This video was released by NASA on Tuesday it gives details of some brilliant observations from SOHO, including an opening scene that shows what looks like flying saucers zipping around our sun. 
NASA heliophysicist and narrator of the video,said "Because they're so bright they overwhelm the detector in the electronics taking this image." That creates the long lines extending outward from their centers.
There are some tremendous images of sun-grazing comets (SOHO has seen over 3,000 of them); an explosive wave from the lower part of the corona; a complete solar rotation of approximately 28 days; and a few other impressive images.
Well NASA in description of this video said "After 20 years in space, ESA and NASA’s Solar and Heliospheric Observatory, or SOHO, is still going strong. Originally launched in 1995 to study the sun and its influence out to the very edges of the solar system, SOHO revolutionized this field of science, known as heliophysics, providing the basis for nearly 5,000 scientific papers. SOHO also found an unexpected role as the greatest comet hunter of all time—reaching 3,000 comet discoveries in September 2015/When SOHO was launched on Dec. 2, 1995, the field of heliophysics looked very different than it does today. Questions about the interior of the sun, the origin of the constant outflow of material from the sun known as the solar wind, and the mysterious heating of the solar atmosphere were still unanswered. Twenty years later, not only do we have a much better idea about what powers the sun, but our entire understanding of how the sun behaves has changed."
Watch this exciting video above but as we know images and videos on blogspot are easily lost .well google should do something about it. if you are not able to see this video then click here